The Springfield Echelon 20-round extended magazine is engineered with precision for reliable performance in 9mm caliber. Featuring stainless steel construction with a corrosion-resistant coating and an FDE (Flat Dark Earth) polymer basepad for enhanced tactical reloads.Springfield Echelon 9mm Magazine - 20 Round CapacityStainless steel construction with corrosion-resistant coatingNumbered witness holes for quick round count referenceExtended FDE polymer basepad for tactical reloadsFits Springfield Echelon pistolsBuilt for reliability and durability this extended magazine provides increased capacity while maintaining the quality and precision Springfield is known for ideal for competitive shooting training or personal defense applications.